baber/WOPTO huggingface dataset:
Patent GB-570747-A (GB)
Title: Improved double walled glazing units and method of manufacture thereof
IPC: E04C1/42
Filed: 1943-05-24
Abstract: 570,747. Glazing. HADDAN, R. (Corning Glass Works). May 24, 1943, No. 8244. [Class 20 (iii)] [Also in Group XXIII] Double walled glazing units are formed by supporting two flat sheets spaced apart one above the other and heating the upper sheet A adjacent its edges until they sag and form a wall 13 at right angles to the plane of the upper sheet. The lower edge of the wall is then fused to the plane lower sheet B, leaving the marginal portion 15 of that sheet projecting for installation in an ordinary window frame. In a modification, Fig. 12, three sheets may be joined, the centre sheet remaining flat. The unit may be vented by inserting a " Nichrome " (Registered Trade Mark) wire 35 during formation; this is subsequently removed, dry air is passed into the unit and the hole V left by the wire sealed. U.S.A. Specification 1,794,888 is referred to.
Patent GB-834736-A (GB)
Title: Improvements in or relating to x-ray apparatus adapted to effect a series of x-ray exposures and having an overload protection device
IPC: H05G1/60
Filed: 1958-03-14
Abstract: 834,736. Variable-speed epicyclic gear. SIEMENS-REINIGER-WERKE A.G. March 14, 1958 [March 14, 1957], No. 8343/58. Class 80 (2). [Also in Group XX] A potentiometer is so arranged that the movement of the sliding contact 19 is the sum of two separate adjusting means. The spindle 2 of the knob 1 has attached to its lower end a contact arm 3 which moves over a series of contacts 5. Also mounted on spindle 2 is the lower sun-wheel 13 of a differential gear 12. Setting ring 10 has a spindle 11 coaxial with spindle 2, and is connected to the shaft 14 of two planet wheels 15, 16 of the differential gear. Thus the rotation of the upper sun wheel 17, and hence of the rotary slider 19, is the sum of the rotational movements of knob 1 and ring 10.
Patent GB-475321-A (GB)
Title: Improvements in directional gyroscopes
Filed: 1937-03-22
Abstract: 475,321. Gyroscopic apparatus. ALKAN, R. March 22, 1937, No. 8359. Convention date, Dec. 11, 1936. [Class 97 (iii)] In a directional gyroscope a part of a single air jet for driving the rotor 9 impinges on a deflector element 10 integral with the rotor carrying frame 7 and provides a torque to correct deviation of the rotor axis from the horizontal. As shown, the air jet nozzle 6 is in one piece with a hollow trunnion 4 of the vertical ring 5 and is supplied with air by the stationary injection pipe 1. The deflector element 10 is fixed near a horizontal trunnion of the frame 7 and is shaped so as to give a large correcting torque about the vertical axis and a negligible disturbing torque about the horizontal axis. A differential gear 13 is interposed between the trunnion 11 of the vertical ring 5 and the element controlled thereby, e.g. a pointer or automatic steering apparatus for aircraft, so that corrections and alterations of course may be introduced without modifying the position of the rotor axis.
Patent GB-1308531-A (GB)
Title: Self removable pressure sensitive adhesive assembly
Inventor: WHEELER S
IPC: C09J7/20
Filed: 1970-02-20
Abstract: 1308531 Laminates LITTON BUSINESS SYSTEMS Inc 20 Feb 1970 [24 March 1969] 8364/70 Heading B5N An integral layered assembly comprises at least two layers, one of the layers being a watersoluble pressure-sensitive adhesive for adhering the assembly to a substrate, e.g. an aluminium plate, and one of the layers also comprising a first reactant which, when the substrate to which the assembly is adhered is placed in water, is capable of reaction (a) with the water (b) with one or more second reactants present in the assembly and/or (c) due to the heat of the water to produce gas so that the assembly tends to be driven by the force of the released gas from the substrate to which it is adhered. The assembly which may be used to produce labels, tapes, bumper stickers or posters to adhere to a substrate may comprise paper, cloth or plastic film coated on one surface with a barrier layer or size to which is applied the pressure sensitive adhesive, the exposed surface of the pressure sensitive adhesive being protected by a release sheet e.g. of paper, coated on the surface adjacent the adhesive with a release coat, e.g. nitrocellulose, cellulose triacetate or a silicone. The barrier layer may be of bone or hide glue, fish glue, casein, gum tragacanth, gum dammar, gum karaya, agar agar, gum arabic, starch, dextrin, chlorinated starch, silicate of soda, polyvinyl alcohol, carboxy methyl cellulose or methyl or hydroxyethyl cellulose. The gas producing system may comprise a' two reactant system, one of the reactants being in the adhesive and the other reactant in the barrier layer of paper layer. The gas producing reactant may be, calcium oxide, cesium carbonate or tetroxide, N, N<SP>1</SP> dimethyl N, N<SP>1</SP> dinitroso terephthalamide, aluminium bromate, ammonium carbonate or bicarbonate, sodium carbonate, or sodium ammonium phosphate, or in the case of a two reactant system an acid, e.g. formic, tartaric, citric, acetic, phosphoric, oxalic, titanic or sulphanic acid, with a metal salt, e.g. sodium bicarbonate, borate, perborate acid pyrophosphate, pyrophosphate peroxide, citrate or xylene or toluene sulphonates, lead carbonate, sodium aluminium phosphate or sodium lauryl sulphate. When removing the assembly from the substrate to which it is adhered, the second reactant may be included in the water.
Patent GB-704885-A (GB)
Title: Improvements in electrical controlling apparatus
Inventor: BERGEN STEPHEN ARCHBOLD
IPC: G05B11/01
Filed: 1951-04-11
Abstract: 704,885. Liquid-level control systems. EVERSHED & VIGNOLES, Ltd. March 26, 1952 [April 11, 1951], No. 8423/51. Class 38 (4). [Also in Group XXXVIII] The invention relates to a modification of the liquid level control system of Specification 688,462, including (i) an additional stage of amplification with a double wound moving coil relay and photo-electric detector having sensitivity adjustment as described in Specification 688,464, and (ii) a switch in the control system output to the servomotor to provide manual control on starting up and a servicing position. The liquid level signal I from valve 20 derived substantially as in Specification 688,462 is applied to coil 37 of another photo-electric, moving coil relay, in opposition to a constant reference current Ic corresponding to the desired level (and obtained from a constant current circuit comprising valve 41 with a galvanometer relay in the cathode circuit reacting on photo-electric cells in the grid circuit). The liquid level error signal from valve 80 and the integral plus differential signal from valve 110 are derived and applied the fluid pressure servo-system substantially as in the prior Specification.
Patent GB-740768-A (GB)
Title: Improvements relating to electrical filter networks
Inventor: SANDEMAN EDWARD KENNETH
IPC: G01S7/35
Filed: 1953-03-26
Abstract: 740,768. Radar. ENGLISH ELECTRIC CO., Ltd. June 25, 1954 [March 26, 1953], No. 8456/53. Class 40 (7). The invention relates to a filter arrangement for the reduction of noise in relation to a signal which may undergo rapid variations but will usually remain at a value for a time long compared with the periods of important noise components. Such a filter comprises means to add to the input signal an alternating bias voltage of a suitable frequency and amplitude, means applying the combined signals to oppositely connected peak voltmeter circuits having falling time constants long relative to periods of important noise components, and means for deriving the mean output voltage of the peak voltmeter networks. The filter may be used for the reduction of noise " jitter " received by a radar antenna array which is directed by a servo-mechanism controlled by the received signals to follow a target. The antenna signals after amplification and rectification may be applied in the form of a D.C. misalignment error signal to the servo-system through the filter which will reduce the jitter to a fraction of its original relative amplitude but not seriously delay operation of the system by the quickest variation of signal to which the mechanism will respond. In one embodiment the filter comprises input connections 10 and 11, a modulating source 12 providing an alternating bias voltage of a frequency at least as high as the highest required frequency components of the signal and higher than the frequency of important noise components and an amplitude which is constant and greater than the highest instantaneous value of signal and noise applied. Transformer 13 adds the two signals and feeds them over lines 14 and 15 to parallel oppositely connected peak voltmeter circuits one comprising diode D1 and relatively long falling time constant circuit C1, R2, and the other diode D2 and a similar time constant circuit C2, R6. The mean output voltage is derived at 20 and 21, point 20 being connected to the mid-point of resistors R3, R4 which have a value at least 10 times R2 and R6 and are connected between the peak voltmeter circuits as shown.
Patent GB-287505-A (GB)
Title: Improvements in or relating to centrifugal bowls
IPC: B04B1/12
Filed: 1928-03-20
Abstract: 287,505. Aktiebolaget Separator. March 22, 1927, [Convention date]. Density separators.-The bowl of a centrifuge which discharges light and heavy liquids, is provided with channels for the discharge of solids; the channels have a series of contractions to decrease the quantity and the kinetic energy of the liquid accompanying the solids. In the form shown in Fig. 1 the bowl is formed of two conical parts 1, 2 placed base to base, and contains the liner plates 3. A nozzle 4 is secured between the parts 1, 2 and contains a number of exchangeable throttling plates 6 which have contracting passages 5. A number of chambers 7 is thus formed in which kinetic energy is dissipated. In the modification shown in Fig. 2, the liquid flowing out through a contracting passage 5 strikes, almost at right angles, the surface of the next throttling plate.
Patent GB-846289-A (GB)
Title: Improvements in or relating to the manufacture of electromagnetic waveguides
Inventor: FYNN GEOFFREY WILFRED
IPC: C25D1/02
Filed: 1957-03-15
Abstract: 846,289. Waveguides. NATIONAL RESEARCH DEVELOPMENT CORPORATION. April 9, 1958 [March 15, 1957], No. 8593/57. Class 40(8). A slotted waveguide is made by electro-forming a layer of conductive material on a mandrel having a partly conductive and a partly non- conductive surface. The circular waveguide shown has a helical slot 2A and forms part of a ferrite modulator of the kind described in Specification 846,288. The slotted waveguide wall 5 is formed by electrodeposition of copper on a conductive mandrel (not shown) having a helical groove filled with an epoxy resin. Straight lead slots 3A, 4A are formed in the same manner. Before the mandrel is removed, a supporting layer 6 of epoxy resin or of polystyrene is applied around the wall 5. Flange 9 is pressed into position upon the supporting layer 6 and is insulated from the wall 5. The corresponding end of the wall 5 is connected to a terminal 11 by a lead 10, these components being moulded in position. A second flange 8 is soldered to the wall 5.
Patent GB-592098-A (GB)
Title: Improvements in yarn twisting apparatus
IPC: D01H1/10
Filed: 1945-04-09
Abstract: 592,098. Twisting yarn. BROCKLEHURSTWHISTON AMALGAMATED, Ltd., ASPINWALL, R. H. S., and HARDING, F. April 9, 1945, No. 8755. [Class 120 (ii)] Yarn-twisting apparatus of the double- or multiple-twist type in which a common driving belt drives a number of spindles each of which is held in driving engagement with the belt by a spring-controlled holding rod &c. is characterized in that each spindle is pivoted on a transverse axis and weighted by the unwinding package to swing away from the belt when the holding rod is released. The package 12, supported by a cone 13, is mounted on a holder 161 carried by a plate 16 which closes the end of a casing 14 carried by a cradle 15 and bearings 20. The yarn, after passing through the outlet orifice 18 of the casing, passes through tension rollers (not shown) and thence through the conduit 191 of the spindle 19 which carries a flyer disc 21 and is rotated by the belt 25, the spindle bearing frame being pivoted at 26 so that upon release of the latch 28 by thread breakage or failure, the package 12 swings the spindle away from the belt 25 to stop the drive. The faller 38 through rocking lever 41 automatically releases the latch rod 28 which may also be released at will by a pedal 32. Simultaneously, the winding-on spindle 33 is stopped by a rod 29 :and a vertically-movable front protective wall 42 is lowered. Specification 592,099 is referred to.
Patent GB-1402192-A (GB)
Title: Apparatus for ultrasonically examining a hollow organ
IPC: A61M25/00
Filed: 1973-02-22
Abstract: 1402192 Ultrasonic inspection devices; piezoelectric devices ERASMUS UNIVERSITEIT ROTTERDAM 22 Feb 1973 [22 Feb 1972 10 March 1972] 8780/73 Headings H4D and H4J [Also in Division A5] An ultrasonic probe in the form of a catheter, for the examination of hollow organs, comprises transducer elements disposed about the circumference of a central core. The dimensions of the elements are greater in the longitudinal axial direction of the probe than in the circumferential direction so that the main lobe of the directivity pattern of the probe lies in a plane perpendicular to the longitudinal axis. In the embodiment shown the catheter (e.g. of 3 mm. diameter) comprises piezoelectric elements 2 on a body having an end cap 3. The catheter is made by removing the metal surface layer from region 10 of a metallized plastics core 5, fixing a radially-polarized piezoelectric cylinder 13 (having inner and outer electrode layers) over this region by adhesive, connecting the electrode layers respectively to the two remaining end regions of the core metallization, then sawing the cylinder, the electrodes and the metallization into strips (details given). The outer electrode strips are provided with a common earth connection by way of cap 3, rod 8 and wire 21. The inner electrode strips have individual connecting ,wires 20 attached. The wires 20 are distributed in screened bundles whereby cross-talk between adjacent element 2 is avoided. The probe is used for scanning the interior of, e.g. the heart by a pulse-echo method, the elements being actuated four at a time as a phased array having delay compensation. A circular scan is obtained by using elements n to n + 3 during one pulse repetition period, elements n + 1 to n + 4 during the next period, and so on. Typically there are 150-200 complete scans per second. Echo signals are fed, through an amplifier with time-varied gain, to a cathode ray tube to provide a PPI display.
Patent GB-1430642-A (GB)
Title: Automatic vehicle control system
IPC: B61L3/22
Filed: 1973-02-22
Abstract: 1430642 Automatic train control GENERAL SIGNAL CORP 22 Feb 1973 [22 March 1972] 8826/73 Heading B7N In a central traffic control system, rail vehicles 10A-10C are controlled via data transfer lines from a central control station 31 which includes a supervisory computer 41 and two safety computers, 43, 44. For each vehicle in the network, the supervisory computer cyclically determines a command speed from positional &c., data supplied by the vehicle and stored with data relating to the track network in store 46 and also generates flag signals depending on whether the vehicle is within a predetermined range of a vehicle ahead or is approaching a stopping station or a set of points, &c. The speed signal and the flag signals are applied to the safety computers which operate in parallel and act to reduce the speed signal to a safe value taking the flag signals into consideration. The speed control signals from the safety computers are compared in data buffer 36 and are formed with a vehicle identification signal and a signal for controlling train apparatus, e.g. train doors and passenger address apparatus, into a four word signal for transmission via the data transfer line to the vehicle. On the vehicle the first identity word in the signal is applied from receiver 62 to input register 63 and is then compared in unit 65 with the vehicle's identity. If these agree sync. control 64 is activated to feed the following words via data identification unit 66, for parity check, and decoder matrix 67 to the word stores 68-70. The words in stores 68, 69 are used for speed control and that in store 70 for vehicle apparatus control. At the same time the sync. control activates assembly register 88 to send data from the vehicle to the centre office. This data includes the count in distance counter 86 which counts pulses generated by vehicle wheel rotation, a record in unit 89 of the count in counter 86 when the last trackside marker 18 was passed by the vehicle, a marker count from unit 93 and a vehicle apparatus report adapted in unit 96. This data, preceded by the vehicle identity is formed into words which are transmitted via generator 97 which adds any parity bits and transmitter 98 to the central control office.
Patent GB-960450-A (GB)
Title: Improvements in or relating to gramophones
IPC: G11B17/14
Filed: 1961-03-10
Abstract: 960,450. Gramophone centre-posts. PHILIPS ELECTRICAL-INDUSTRIES Ltd. March 10, 1961 [March 14, 1960], No. 8867/61. Heading G5R. A centre-post, rotating with the gramophone turntable 4, has an eccentric actuator, 7 projecting through the turntable for periodic engagement with record-changing control mechanism (not described) and actuates a pair of Z-shaped record supporters 12, 15, linked to move in opposite directions to release stacked records singly to the turntable. The post is located about a sleeve member 2, allowing simplified turntable bearing arrangements to be used.
Patent GB-142986-A (GB)
Title: Improvements in friction devices for spindles, bobbins and the like
IPC: B65H59/04
Filed: 1919-04-08
Abstract: 142,986. Smith, T. & W., and Pile, S. April 8, 1919. Spindle apparatus.- A drag device for a spindle or bobbin comprises a spring A shaped to engage a groove B formed round the end portion of the bobbin D. Both ends of the spring are free. Means for preventing the turning of the spring with the bobbin may consist of an extended portion E adapted to engage a stationary part F. The spring may be of circular section and the groove V-shaped.
Patent GB-912445-A (GB)
Title: A process for the production of acetylene-containing gas mixtures
Inventor: HAAR LEONARD WILLEM TER
IPC: C10G9/38
Filed: 1960-03-14
Abstract: An acetylene-containing gas is obtained by partially combusting in a combustion zone a fuel-containing stream with not more than 90% of the oxygen required for complete combustion, adding a hydrocarbon or hydrocarbons and further oxygen in a cracking zone whereby the hydrocarbons are converted to an acetylene-containing gas and quenching.  The fuel may be hydrogen or a gaseous, liquid or solid hydrocarbon or hydrocarbon mixture; oxygen, preferably 35-50% of the stoichiometric proportion, is added as industrial oxygen, or air to which oxygen or inert gases or vapours may be added.  At least one reactant is preheated to 100-850 DEG C. Preferably the combustion is effected as in Specification 780,120 in which one stream is introduced through a central opening in one wall of a cylindrical chamber in the form of a hollow cone and the other with a rotatory motion through an opening in the same wall around the cone whereby a double toroidal vortex flame is formed. The temperature of the combustion products is preferably 1,300-2,000 DEG C.  The hydrocarbons added in the cracking zone preferably boil below 400 DEG C. and contain straight chain paraffins; they are preheated to 300-600 DEG C.  They may be injected in two stages, the second being downstream from the first and the ratio of the amount injected through the first to that through the second may be 2-3, the total amount being 1-5 kg./kg. of fuel. The oxygen, preheated, is injected at or near the first of these stages and in an amount such that the total oxygen supplied is 80-100% of the stoichiometric proportion for the combustion of the fuel.  Steam may be added with the fuel and/or hydrocarbons and/or oxygen streams in a total amount of 0.3-3 kg./kg. of fuel. The pressure is preferably below 5 kg./cm.2 absolute and the cracking reaction time below 5 X 10-3 sec., quenching to below 600 DEG C. being effected with water.  Specification 703,721 also is referred to.
Patent GB-712401-A (GB)
Title: Four-driving-wheel farming tractor
IPC: B62D49/00
Filed: 1951-04-18
Abstract: 712,401. Tractor driving arrangements. S.E.B.I M. SOC. D'EXPLOITATION DES BREVETS ET INVENTIONS MARRIE. April 18, 1951 [April 25, 1950; Oct. 23, 1950], No. 9016/51. Classes 79(1) and 79(2) In a tractor having all four wheels driven the wheels are driven by coaxial half shafts and are arranged in tandem on equalizer beams pivoted about the axis of the half shafts, the shafts being driven at variable speeds for changing direction of the tractor and the chasis frame being resiliently rested on the equalizer beams. The tractor, as shown in Figs. 1 and 2, comprises an engine 1, a change speed gear 2 and a differential gear 3 driving the half shafts 5, each shaft carrying a brake drum 6 controlled for steering by a lever 22 and chain sprockets 7, 8 connected by chains 11, 12 to sprockets 13, 14 associated with wheels 9, 10. The wheels may alternatively be gear-connected to the shafts. The wheels 9, 10 on each side are rotatably mounted on an equalizer beam 15 pivoted on the shaft 5 and carrying upward extensions guided between a chassis frame side member 18 and plates 21. The ends of each equalizer beam 15 are connected to a leaf spring 17 connected at mid length to the frame 18. In a modification each end of the equalizer is connected to a separate spring. In a modified driving arrangement, Fig. 4, there is no differential gear, an engine-driven shaft being bevelgear connected with a shaft.32 mounted in bearings 33 in a casing 30. The ends of the shaft 33 are connectable with the shafts 5 through dry plate clutches 39. Each clutch is controlled by a shiftable ring 47 engaged by a forked member pivoted at 45 and connected by a cable 43 to a control lever 40. The lever 40 also controls a brake band 50 on the brake drum 6, the arrangement being such that disengagement of the clutch precedes the application of the brake on movement of the lever 40.
Patent GB-126612-A (GB)
Title: Improvements in and relating to the Casting of Hollow Walls.
Inventor: CRAMER ANTON MARIUS
IPC: E04B2/84
Filed: 1919-04-09
Abstract: 126,612. Cramer, A. M. May 8. 1918, [Convention date]. Walls. - A hollow cast concrete wall with vertical tubular spaces is formed by placing cement tubes 3 and cement spacing members 4 alternately in a mould 2 and filling in the mould with concrete which binds with dovetailed grooves 5 in the members 4. The tubes and members 4 are coated with an insulating material such as asphalt. Ties 6 may be laid in the courses. Removable cores may be used to form the vertical tubular spaces instead of tubes.